What is the effect of slope on velocity?

Click For Summary

Homework Help Overview

The discussion revolves around the effects of slope on velocity, specifically in the context of sliding down a slope and attempting to climb an icy hill. The original poster presents a scenario involving a 10% slope and a starting velocity of 10 km/h, seeking to understand how velocity changes over time and whether climbing a 5% slope is feasible.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the relationship between slope percentage and angle, questioning how to calculate acceleration on an inclined plane without knowing mass. There are attempts to apply kinematic equations, but confusion arises regarding the appropriate use of variables and the implications of slope on motion.

Discussion Status

The conversation includes various interpretations of the problem, with some participants suggesting the need to write down equations to clarify the situation. There is a mix of uncertainty about the necessary equations and how to approach the calculations, indicating an ongoing exploration of the topic.

Contextual Notes

Participants note that the relationship between slope percentage and angle is crucial, and there is a reference to external resources for further clarification. The discussion highlights the challenge of addressing the problem without complete information, such as mass, which is typically required for force calculations.

denzel
Messages
9
Reaction score
0

Homework Statement


You are sliding downhill a slope of 10% (what angle is that?). Calculate how the starting velocity of 10 km/h changes within the first 120 s. After that you try to climb up an icy hill with 5% slope. Is that possible?

Homework Equations


Vf = Vi +At

The Attempt at a Solution


I tried to put acceleration as -9.81 and using the kinematic formula Vf = Vi +At but the result was way too big. Should I take those 5.71 degrees and do something with them?
 
Physics news on Phys.org
Like %100 slope is 90 degree %0 slope is 0 degree so %10 is ??

Try to calculate the acceleration that you ll gain in inclined plane
 
Arman777 said:
Like %100 slope is 90 degree %0 slope is 0 degree so %10 is ??

Try to calculate the acceleration that you ll gain in inclined plane

How should I do this I if Ii don't have the mass?
 
denzel said:
How should I do this I if Ii don't have the mass?

You don't need mass If you write down the equations you'll see
 
Try To write down the total force acting on the object.Then you fill find a
 
Arman777 said:
You don't need mass If u write down the equations you ll see
Well I really don't know which eccuations are you talking about.
 
denzel said:
Well I really don't know which eccuations are you talking about.

Do you know Newton's Law and their applications ?
 

Similar threads

  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 9 ·
Replies
9
Views
3K
  • · Replies 2 ·
Replies
2
Views
5K
Replies
7
Views
2K
Replies
2
Views
1K
  • · Replies 11 ·
Replies
11
Views
3K
  • · Replies 14 ·
Replies
14
Views
2K
Replies
5
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K